Aircraft



FIG. 1 is a side elevational perspective of an aircraft according to the novel design.

FIG. 2 is a front perspective of an aircraft according to the novel design.

FIG. 3 is a side perspective of an aircraft according to a novel design.

FIG. 4 is a top perspective of an aircraft according to the novel design; and,

FIG. 5 is a bottom perspective of an aircraft according to the novel design.

The broken lines included in the drawings depict elements that are not part of the claimed design. 

The ornamental design for an aircraft, as shown and described. 